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Oct. 25, 1932. F. FULLER CASH REGISTER Filed Dec. 3, 1926 3 Sheets-Sheet 1 \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\s\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\sv Oct. 25, 1932. 4 F. 1.. FULLER I 1,333,894

GASH REGISTER Filed Dec. 3, 1926 v 3 Sheets-Sheet 2.

INVENTOR FREDERICK L. FULLER BY a,

ATTORNEYS F. L. FULLER Oct- 25, 1932.

CASH REGISTER Filed Dec- 1 3 Sheets-Sheep 3 INVENTOR FREDERICK L F LLER BYQQ ATTORNEYS Patented Oct. 25, 1932 UNITED STATES PATENT OFF-ICE FREDERICK L. FULLER, 01' ILION, NEW YORK, ASSIGNOB, BY MESNE ASSIGNMENTS, 'THE NATIONAL CASH REGISTER COMPANY OF DAYTON, OHIO, A CORPORATION O! I MARYLAND CASH REGISTER Application filed December 3, 1928. Serial 110. 152,886.

This invention relates generally to improvements in accounting machines and more particularly to devices for protecting the 5 totalizers of such machines against misoperation at all times. In the embodiment of the invention herein shown it has been applied to a cash register of the key-operated type, provided with a plurality of totalizers although it is applicable as well to a key set machine or one having but a single totalizer.

It has been a primary object of the present invention to provide suitable fneans for protecting the interests of the owner of a shop in which the machine is installed by protecting the totalizer elements against tamperin and misoperation, either accidental or intentional, through the operating elements of the machine or through the insertion of separate 2o wiresorspecial instruments. Y

The machine disclosed is of the type capable of printing totals and in which, during totalprinting operations, it isnecessary to open up certain concealing lids which normally prevent access to the elements of the totalizers.

One-of the specific objects of the present invention is to provide means for ositively locking the totalizer elements against rota- 0 tion by any means whatsoever when the lid or shield which normally conceals these elements is released for movement out of its normal concealing position. In-the present embodiment of the invention this is accomplished by suitable connections from a controlling element whereby, as the latter releases the concealinglid or shield, it simultaneously efiects apositive locking of the totalizer wheels. It has been found convenient, for this purpose, to make use of the regular spring-pressed detents which are .efiective at all times, to prevent accidental movement of the elements and to merely positively hold these detents under the conditions specified.

In machines of the'type herein disclosed it has usually been the practice to reset the totalizer elements when the concealing lid or shield is in its open position, but since, at this time, in accordance with the present invention, the

totalizer elements will e locked against any movement, it is a further object to rovide suitable means mounted on the shield or controlling the resetting of the totalizers. More specifically, it has been customary in the past,

during resetting operations, to manually slide the operator. According to the present invention suitable means mounted on the shield are ada ted to control the lateral shifting of the totalizer shafts.

In order to further. safeguard the resetting operations of the machine and prevent tampering with this mechanism by unauthorized persons a full stroke mechanism has been applied to a member which is adapted to reset the totalizer wheels. This mechanism revents the partial resetting of the totallzer elements without carrying the operation through to completion.

To further protect the resetting devices against misuse, a suitable resetting counter is included in the present invention, for the purpose of accurately counting the number of times that the totalizer elements have been reset. In connection with this counter, it has been a specific object of the invention to so correlate it with the totalizer that an impression may be taken from it at the same time that a total is being printed from the totalizer itself. To this end the resetting counter has been mounted on the shaft, which supports the totalizer elements, and it is ada ted to be operated by the rotation of this s aft which effects resetting.

Still another object of the invention has been to provide suitable guards to prevent the insertion of wires or other instruments at various points, which might otherwise be open for the encouragement of tampering with the totalizer wheels;

In machines of the class herein disclosed it is necessary to expose certain parts of the mechanism at a time when the detail strip, on which the items and totals are recorded, is being replenished. According to the present invention, a portion of the guards which prevents tampering with the totalizenelements at such times has been movably mounted so that maximum protection is obtained when the parts would otherwise be exposed and yet no interference is created with parts which must be moved during a regular operation of the machine.

Other objects of the invention have been to improve various details of construction, particularly relating to the features already mentioned. These objects will become more apparent from the detailed description of the preferred embodiment of the invention and from the claims which follow.

It will be understood that the invention hereindisclosedds capable of various embodiments and that a preferred form only of most of the features is shown in the drawings which accompany and form part of the specification, although a suggested modification of one feature is shown.

Of said drawings:

Fig. 1 is a sectional elevational view of the illustrative machine taken partly to the left of the totalizers and partly through the totalizers which are located substantially at the center of themachine.

Fig. 2 is a detail sectional view taken through one of the totalizers showing particu: larly the preferred form of mechanism for locking the totalizer elements.

Fig. 3 is a perspective view showing the various locking devices controlled by a special controlling member.

Fig. 4 is a detail showing the co-action of the interlocking parts between the control member and the front lid of the machine.

Fig. 5 is a perspective view of certain of the guards which prevent tampering with the totalizer elements..

Fig. 6 (is a detail in elevation of a modified form of mechanism for locking the totalizer elements.

Fig. 7 is a detail in plan view of a portion of this modified locking mechanism.

Fig. 8 is a detail of a slide used in the modified form of locking mechanism.

Fig. 9 is a sectional-view taken along the line 9-9 of Fi 1 and showing a portion of one of the totalizers and the resetting counter mounted adjacent this totalizer.

Fig. 10 is a sectional view taken along the line 1010 of Fig. 9.

Fig. 11 is a sectional view taken along the line 1l-11 of Fig. 9.-

The present invention has been shown as applied to a machine of the type disclosed in the co-pending appllcation of Frederick L.

' Fuller, Ser. No. 263,125, filed November 19,

1918 and the British Patents Nos. 135,465, 140,363, 157,823, 157.824 and 157,825 of July 11, 1921. The Fuller application aforemen: tioned matured into Patent 1,7 42,7 01 on January 7, 1930. Those parts of the machine shownin the present drawings which are old and disclosed in the applications and patents mentioned will be but briefly referred to, whereas, those features which are,

As is usual in this class of machine, a number of operating keys 10 (Fig. 1) are provided, a group of these keys being employed for each denominational order. For the units and tens orders it will be preferable to provide 9 keys for thedigits one to nine in each of these orders, whereas, for the higher orders any suitable number of keys, depending upon the desired capacity, may be employed. All of the operating keys .are mounted upon a common supporting shaft 11, about which they are rocked when depressed. Resting upon the rear ends of all of the keys is a key coupler 12, which is adapted to be raised orrocked about its pivot 13, upon the depression of any one or more of the keys. As the rear end of the coupler rises it will lift a rack member 14 through the pin and slot connection shown and, as customary in machines of this class and as more fully explained in the application and patents mentioned, each reciprocation of the rack 14 will result in one completerevolutionof the main operating shaft 15.

In order to impart a differential movement to suitable actuating devices, each key is provided with an upward extension 16 carrying aroller 17 at its upper end and each roller plate 20. All of the cam grooves 18 are of the same form and are concentric with the segment supporting shaft 200, whereas the slots 19 are of different slopes, so as to provide differentially graded camming surfaces. It will be apparent that depression of a particular key 10 will cause its roller 17 to enter the corresponding slot 19 of its cam plate 20 and will rock the entire series of such cam plates, 20 belonging to the same denominational order which are all mounted upon a single frame having secured thereto an actuating segment 21. The slots 18 of those cam plates whose keys are not operated will cooperate with the roller 17 of these keys without any effect upon the latter. Each of the actuating segments 21, of which there is one for each denominational order, is adapted to co-operate with a pinion 22 associated with each of a pair of totalizers whose wheels are understood that the totalizer pinions 22 are normally out of mesh with the segments 21 but any suitable totalizer selectingandengaging mechanism, such as shown in the ap plication and patents mentioned, may be provided to bring these pinions and segments into co-operation.

In order to prevent accidental displacement of any of the totalizer wheels, each is mounted on a pair of shafts 23. It will be ture of they operation of the machine.

provided with a detent pawl 24 2) which is adapted to rock in and out as the pinion 22 rotates and is adapted to engage one of the interdental spaces of the pinion when the latter is at rest.

Uontrol devices As more fully explained in the application and patents mentioned hereinbefore, as well as in the applicationsof Charles W. Green, Ser. No. 639,569, filed May 17, 1923, the machine to which the present improvements are applied, is provided with a general control member 25 (Fig. 3), which may be adjusted to various positions for determining the na- In one position of this meinber it is adapted to place themachine in condition for total printing and, in so doing, it releases a pair of lids attached to the usual cabinet. Opening of one of the lids, furthermore, will serve to shaft 31 is acam disk 32 having a ca release a printer frame, to permit the printing of a total'from either of the totalizers and, at the same time, .will lock up the key coupler and hence the operating keys. The connections forefiecting these functions will now be described.

Connected to the member 25 by any suitable. means, such as the screw shown, is a bell crank lever 26, which is provided at its lower forward end with a rack portion 27. Meshing with this rack portion is a gear segment 28 secured to which isanother gear segment 29 which, in turn, meshes-with a gear segment 30 secured to a shaft 31. Also secured to the slot 331, which is adapted to co-operate with pin carried by a rearwardly extending arm of a bell-crank 33. The construction is such that movement of themember 25 to one of its positions, which may be designated the Total position, will rotate, the cam disk 32 to a point where the slot 331 will rock the bell-crank33 counter-clockwise. This movement of the bell-crank will cause a pin 34 carried at its upper end to engage a locking spider 35 (Fig. 1) mounted on a stud 351 and rock the latter until the hook portion 36 is disengaged from a flanged stud fastened to an upper lid 37 and a hook portion 38 is dis engaged from a lug fastened to the machine cabinet. The stud 351 is carried by a front lid 40, which is pivoted to the cabinet of the machine at 41. Rocking of the spider member 35, as explained, will therefore permit the raising of lid 37 and the tilting forward of the lid 40, such action of said spider being similar to thatof the spider 634 pivoted to lid 631 in British Patent No. 157,823, hereinbefore referred to.- A shield 39 is secured by any suitable means to the sides of the front lid 40 and is provided with a downwardly extending arm 42 (Fig. 4) carrying a pin 421 which cooperates with a'cam slot in a member 43, which is secured to a shaft 44. The formation of the slot in the member 43 is such that as the lid 40 is-tilted forward the pin 421 will rock the member 43 in a counter-clockwise direction (Fig. 3). Also secured to the shaft 44 is an arm 45 which is connected by means of a spring 46 to an arm 48, secured to a shaft 441 in direct-line with shaft 44. As the arm 45 is rocked downwardly, due to the counter-clockwise movement of the cam member 43, an overturned finger 47 will be lowcred out of the path of arm 48, so that the spring 46 may draw the latter downwardly. The rear end of the arm 48 stands normally in the path of a pin 49 projecting laterally from a frame member 50 pivotally mounted on the previously mentioned shaft 200. As more fully explained in the applications and British patents hereinbefore mentioned, the frame plate 50 is a part of a printer frame whichis adapted to be rocked forwardly to effect total printing from either one of the pair of ,totalizers. For this purpose the finger-pieces 52 and 53 (Fig. 1) are provided, the former being directly secured to the plate 50 and being adapted to cause a total to be printed from the lower totalizer, whereas, the finger-piece 53 is carried by an arm 51 and is adapted to effect the printing of a total from the upper totalizer. It will be apparent,

that until the arm 48 is rocked downwardly, as before explained, the printer frame will be locked against movement so that no totals may be printed. Toward the other end of the shaft 441 is secured an arm 55, (Fig. 3) which is rocked downwardly at the same time .as the arm 48. The rear end of arm 55, as

the latter is rocked downwardly, is carried in front of an upwardly extending arm 56 secured to the key coupler 12, so that so long as the arm 55 is lowered it will be impossible to rockthe key coupler and hence to operate any of the keys 10.

Referring to Fig. 4, it will be noted that a plate 57is secured to the shield 39, so that as the front lid is tilted forward this plate will move from the full line position shown to the broken line position indicated. At this time the bell-crank 33 (Fig. 3) will be rocked rearwardly so that an over-turned finger 58, carriedat its upper end, will be in the full line position shown in Fig. 4. It will be apparent from (this figure that the lid 40 'could not be trol member 25 to some position other than ment-ioned detents total controlling position, unless the front lid .is closed. 7

Totalz'zer locking means As best shown in Figs. 1 and 3, a cam disk is also secured to the shaft 31 and is adapted to be operated by movement of the control member 25. A cam slot 61 in the disk 60 cooperates with a pin 62 carried by a pitman 63, which, at its forward end, is attached to a bell-crank lever 64 loosely mounted on the same shaft 821 upon which bell-crank 33 is mounted. A rearwardly extending arm of the bell-crank 64 is attached to the lower end of a link 65 which, at its upper end, is attached to a curved arm 66 loosely-mounted upon shaft 200. In the forward edge of the arm 66, which is curved to form an arc of a circle about the shaft 200 as a center, are a pair of notches 67. (lo-operating with the upper notch 67 is a pin mounted in a segment arm 68 (Fig. 1) pivoted upon the supporting shaft 69 for the upper totalizer. The segment portion at the forward end of the segment arm 68 is adapted to mesh with a gear segment 70, and this segment-is secured to a shaft 71 mounted in the lower forward portion of the upper totalizer frame. It will be understood that a similar'set of connections extends between the lower notch 67 and the shaft 71 in the frame that carries the lower totalizer.

Referring-to Fig. 2, it will be noted that the shaft 7.1 is provided with cut away portions 72 which are in line with and adapted to co-operate with plungers 73 mounted in the totalizer frame, said plungers being urged by a spring 74 against the previously 24. Normally, the springs 74 will urge the plungers 73 and the detents 24 upwardly, so that the noses of the detents will be frictionally held in the spaces between adjacent teeth of their respective'pinions 22. As the pinions 22 rotate, it will be possible for the detents to rock outwardly and force the plungers 73 down into the cut-out portions 72 of the-shaft 71. However, when the control lever 25 is shifted to the total position the slot 61 in disk 60 will force the pitman 63 forwardly and will thereby raise the link 65, causing the arm 66 to rock the two segment arms68,

one for each totalizer, clockwise (Fig. 1).-

This will rotate the shafts 71 counter-clockwise until the outer periphery of these shafts is presented below the series of plungers 73.

When the shafts 71 are so positioned it will be apparent that the plungers cannot-move downwardly and hence the detents 24 cannot be rocked. so that the pinions 22 are positively held against any rotation in either direction.

Modified form of totalizer locking means \Vhile the mechanism which has just been explained 18 the preferred construction for effecting the positive locking action of the detents 24, various modifications of this mechanism are possible for effecting the same resuit. One suitable modification is shown in Figs. 6, 7 and 8 and this form will now be described.

Secured to the shaft 31 there may be provided a cam disk 601, corresponding to the 622 will be moved upwardly, due to the coun- I ter-clockwise rotation of disk 601 from the position shown in Fig. 6. A pair of pins 625 are mounted in over-turned extensions of the slide 622, one adjacent each of the totalizers.

Each pin 625 co-operates with a slot 626 in a slide'627 (Figs. 7 and 8), which is formed with beveled edges 630 (Fig. 6) adapted to slide in suitable grooves forming a guideway 631 in the totalizer frame 628. The upper edge of each slide 627 is provided with a series of notches 629, one of which is normally in line with each of the detents 24. When the parts are in normal position, therefore there is no opposition to the movement 0 the detents except for the springs 741 (Fig. 6). \Vhen the slide 622 is lifted, however,

the pins 625 acting in the slots 626 of slides.

Resetting devices In order that the totalizer elements may be reset periodically to their zero positions, a resetting lever 77 (Fig. 1) is loosely mounted upon the shaft 200 and at its forward end carries a rack segment 78 (Fig. 7), which is adapted to co-operate at times with a pinion 79 mounted 'on each of the totalizer wheel supporting shafts 23. As more fully ex plained in the Fuller application, and the British patents previously referred to, the resetting of the totalizer wheels is effected by the rotation of the supporting shafts 23, each shaft being provided with a series of notches 80 (Fig. 9) which are adapted to co-operate with suitable pawls carried by the totalizer wheels and hence bring the latter to their zero positions upon turning of the i the shafts laterally until the notches and pawls are in line. This lateral shifting at the same time serves to carry the pinions 79 into mesh with the segment 78. In the application and patents mentioned shifting of the shafts is controlled by a small knob at the end of each shaft, which must be engaged by the finger of the operator. According to the present invention, the shafts 23 are not accessible to the operator at a time when it is possible to turn the wheels. This is .due to the fact that, as explained in the preceding section, when the front lid is opened, to permit access to the shafts, all of the totalizer wheels are positively locked against rotation in either direction. The-present invention, therefore, contemplates other means for sliding the shafts which are accessible to the operator at a time when the front lid is closed. For this purpose a slide 81 (Figs. 1 and 9) is suitably mounted for lateral movement on the shield 39 adjacent each of the totalizers. Downward extensions 82 of the slides 81 are forked to partially surround the shafts 93- just to the left of collars 83 which are secured to these sh afts. Each slide '81 may be mounted on the shield 39 by means of a pair ofstuds 85 which may be riveted at their lower ends to the slide and provided with a shoulder adapted to receive a washer 86 co-op erating with the opposite side of the shield 39. Elongated slots 87in the shield 39, through which the studs 85 pass, will permit a slight lateral movement to be given to the slides. .A pin 88 mounted in the stud 85 is adapted to slide through a suitableopening in a stud 89 secured to the shield 39, while a spring 90, surrounding the pin 88, normally tends to force the slide 81 to the left, as shown in Fig. 9. When it is desired to reset either of the totalizers the correspondin shaft 23 may be slid to the right by the nger of the operator by merely pushing against either of the studs 85 fastened to the related slide 81. This will serve to line up the pawls on the wheels with the notches 80 and at the same time mesh the pinion 79 with the segment 78. g

In view of the fact that the resetting operation may be performed by anyone who may raise the lid 37 and, as a matter of fact, must be done without movement of the control member 25 to a total position, it is contemplated by the present invention to operate one of a pair of special item counters upon each resetting operation of the totalizers. In the preferred embodiment, as herein shown, these counters are adapted to be operated upon rotation of the correspondingtotalizer shafts. It is to be understood that one of these counters will be mounted adj acent each of the totalizers and, as shown, the wheels of each counter are mounted directly uponthe related totalizer wheel supporting shaft. For the purpose of operating the counter, an

Y arm 92 (Fig. 10) is secured to each shaft 23 and carries a pin 93 which will travel through slightly lessthan a full revolution upon each resetting operation of the shaft. As the pin 93 is carried counter-clockwise (Fig. 10) its first movement will be idle but it will finally strike the upper side of an arm '94 which carries a pawl 95 whose forward end 96 engages a ratchet wheel 97, secured to a lower order counter wheel'101. Continued movement of the pin 93 will rock the arm 94 downwardly against the tension of spring 99 and will rotate the ratchet wheel 97 one tooth space. As the shaft 23 now rotates clockwise to its normal position the spring 99 will draw the arm 9% upwardly while, at the same time, the pawl end 96 will rock idly over one tooth of the ratchet 97. As the pin 93 reaches its home position it will bear against the end 96 of the pawl and positively force it into the adjacent tooth of the ratchet wheel, thereby preventing any rotation of the latter so long as the shaft 23 is at normal. Retrograde movement of the ratchet 97 is prevented by a suitable detent 98 which may, as shown, be spring held by the same spring 99 which operates the arm 94 and holds the latter against the fixed pin 100. If desired, a spring may be employed to hold the end 96 of movement to the arm 94. Any suitable transfer mechanism may be employed between the Fig. 11, a transfer of the Geneva type is preferred. This may be of the usual construction, in which a single tooth disk 102 is secured to a lower order wheel 101 and cooperates with a notched locking-disk 103, to turn the latter one step upon each complete rotation of the lower order wheel. Secured to the disk 103, which is loosely mounted on an extension of shaft 69, may be a pinion 104 adapted to mesh with a pinion 105 secured to each higher order wheel, so that the latter will be moved one tooth space upon each full rotation of a lower order wheel. Preferably, the item counter wheels 101 will be of the same general type as the totalizer wheels, so that the number standingon the counter may be printed along with a total when an impression is taken from the corresponding totalizer. In order to avoid any possibility of interference between the operating and detent 'means for the ratchet wheel 97, as the latter is locked with, the totalizer to engage the rocked the entire reset counter unit will also be rocked.

pawl 95 in engagement with the ratchet wheel 97, although this will several counter wheels 101, but, as shown in Another rotective feature which it is contemplated s ould be used in connection with the other features of the resetting mechanism in order that mis-operations, intentional or otherwise, may not be performed, is the provision of a full-stroke device for the reset lever. One suitable form is shown in Fig. 1

and comprises a plate 107 attached to the 'renated 1110 in Fig. 7. It will be apparent that if an attempt is made to restore thelever after a partial movement, it will be prevented by engagement of pawl 108 with the teeth of plate 111. At the end of the forward movement of lever 77, however, the pawl 108 will ride over a camming projection 1081 of the plate 111, which will result in rocking the pawl until a shoulder 1082 is carried below the forward end of pawl 109 which is then rocked by spring 110 to engage this shoulder.

This will hold the pawl 108 out of engage" (necessary to summarize this operation, other ment with the ratchet teeth of plate 111 during the return stroke of the lever 77. At the end of the return stroke, however, an overturned projection 112 on the pawl 109 will engage a }pin 113 projecting from the frame 1110, so t at the pawl will be rocked to free the pawl 108 and the latter will be moved by spring 110 into the normal position shown in Fig. 1. No means need be provided to enforce a full return stroke of the lever 77, since all ofthe totalizer elements will have been fully reset by the forward movement of the lever.

Special guards In order to protect the totalizer against picking of the wheels by the insertion of wires or other instruments at a time when the printer mechanism is elevated, for the purpose of replenishing the record strip, the

present invention contemplates the use of several peculiarly constructed guards or shields. One of these guards,designated 115 in Figs. l and 5 of the drawings, is secured by rivets or other suitable means to a pair of plates or arms 116 and 117 loosely mounted upon the shaft 200. As best illustrated in Fig. 5, the shield 115 is so curved as to follow the general contour of the upper rear edges of the segments 21, and it is adapted to span the entire series of these segments. It will be apparent, therefore, that when any one of the segments 21 is operated through the associated differential mechanism, it will strike the shield 115 and rock the latter counterclockwise. If more than one of the segments is operated, that one which is moved the farthest will, of course, determine theextent of movement of the shield. Secured to the pair of intermediate frames 1110 and 1111 (Figs. 1, 5 and 7) and held just above the shield 115 is another guard 118. The lower edge of this guard is concentric with the shaft 200, so that it will conform to the path of the upper end of the shield 115. The rear end of guard 118, furthermore, terminates in a downwardly extending tail with which the upper end ofshield 115 co-operates when the latter is moved rearwardly nine steps. It will be apparent that, by the use of both of the guards 115 and 118, it is practically impossible to insert a wire from the rear to tamper with the totalizer elements, even though the printer frame may be lifte out of the machine. The pivotal mounting of the guard 115, furthermore, places the latter as close as possible to the tota-lizer elements, when the machine is at rest, without interfering with the movement of the differential segments. 7 Summary of operation Inasmuch as the present invention is not concerned with the normal operations of the machine during entry of items. it will not be than to point out that operation of any of the keys 10 will serve to rock the key coupler 12. When a total is to be printed, a special control member 25 is shifted to an appropriate position designated for this purpose and, through the segment 27 and the train of gearing shown in Fig. 3, the cam disk 32 will be rotated to a point where the slot 331 will rock the bell-crank 33 counter-clockwise, to release both the upper lid 37 and the front lid 40. Tilting forward of the front lid 40 will, at this time, cause the pin 421 to rock the cam member 43' and the shaft 44 counterclockwise and, through arm 45 and spring 46 will lower the arms 48 and 55. The first of these arms which normally locks the printer frame plate 50 will then release the latter so that a total may be printed from either of the totalizers by the use of finger-pieces 52 and 53. Arm 55 will, at the same time, move into the path of the arm 56 secured to the. key coupler and therefore lock the latteras well as all of the keys against operation. Movement of the control member 25 to the total controlling position, furthermore, will have served to rotate the cam disk 60 to a point where the slot 61 will have cammed the pitman 62 forwardly, thus raising the link 65 and rocking the curved arm 66 counter-clockwise. Notches 67 of the arm 66 being engaged with pins carried by segment arms 68 will have rocked the latter clockwise and will have rotated the shafts 71 in the. two totalizers counter-clockwise. Rotation of shafts 71, in this manner, will serve to resent solid" portions of the latter below t e series of -When the shafts 71 are turned, however, it

will be impossible for the plungers to descend, so that the detents 24 cannot be rocked and the pinions 22 cannot be rotated in any direction. In this condition of the parts it is only possible to print totals from the total wheels and it is impossible to operate them either additively or to reset them. When it is desired to reset the totalizer elements, it is necessary to close the front lid 40 and shift the control member 25 out'of the total controlling position, so that the cam disk will again restore the pitman 62 to the position shown in Figs 1 and 3. It may be noted at this point that,due to the co-action of plate 57 with finger 58 of the arm 33, it is impossible to move the control member out of total controlling position until the front lid is closed.

Resetting is effected by operation of the resetting lever 77 which carries a segment 78 at its forward end adapted to co-operate with a pinion 79 carried by each of the totalizer wheel supporting shafts 23. Normally, the pinions 79 are out of the plane of segments 78, and, at the same time, the notches 80 in the shafts are out of the planes-of pawls carried by the totalizer wheels. It is therefore necessary to slide the shaft of the totalizer whichds to be reset before resetting may be effected.

Since the front lid must be closed in order to free the wheels for rotation, slides 81 are mounted on the shield portion 39 of the front lid in such a way that studs are accessible to the operator of'the machine for shifting v the slides. A downward extension 82 of each slide, cooperating with a collar 83 on the related totalizer shaft, will serve to shift the latter to render the resetting connections eflective. In order that accurate check may be kept upon the number of times that the totalizer wheels have-been reset, each totalizer supporting shaft 23 will carry a series of counter'wheels 101 which are connected toggthei' by Geneva lock transfer mechanism of the usual type. The lowest order wheel of this group is adapted to be given a single step of movement upon eachoscillation of the shaft 23. For this purpose, an arm 92 carrying a pin 93 is secured to the shaft and co-operates toward the end of the .counterclockwise rotation of'the shaft with a pawl carrying arm 94 so that during the last/step of movement one is added into the lower order wheel; Upon return of the shaft the 'arm94 is restored by the spring 99 to normal position. i

As best shown in Fig. 1, a full stroke mechanism is provided to compel completion of the forward movement of lever 77 before its return. This mechanism comprises the pair of pawls 108 and 109, the former of which co-operates with ratchet teeth on the plate 111 during the forward movement of the lever but not on the return. The movable shield 115 mounted upon arms 116 and 117 pivoted on the shaft 200 co-operates with a fixed shield 118 mounted on a pair of intermediate supporting frame members, to prevent tampering with the totalizer wheels through the insertion of wires or specially designed implements.

All of the features which have just been explained combine to protect the totalizer against mis-operation during, total printing and resetting operations, as well as at times when the parts would normally be exposed, due to the strip.

By the use of the'various protective features contemplated by the present invention, it is practically impossible for the operator of the machine to manipulate the totalizer Wheels to his own advantage without detection by the proprietor of the shop in which changing of the record ,the machine is installed.

, tional elements, a series of spring urged de- 4 tents, one for each element, for normally holding the latter in any position of adjustment, a control member, movable to a plurality of positions of adjustment, means controlled by said member for positively holding said detents and thereby positively looking said elements when the control member is in one position, and means for moving said totalizer elements while the control member is at rest in a different position.

2. In a machine of the class described, a plurality of totalizer elements, a plurality of detents, one for each element, springs normally urging said detents against said elements, a control member movable to a plurality of positions of adjustment, and means operated by said control member for positively locking said detents against movement away fromsaid elements, said control member being adapted to be locked in more elements, means operated by said controlling of totalizer elements, means formeans for positively locking said elements, and means adapted to lock said controlling means in any one of a plurality of positions.

4. In a machine of the class described, a plurality of rotatable printing totalizer elements, a plurality of spring urged detents therefor, normallylocked means for printing from said elements, control means for releasing said printing means so that a total may be printed from said elements, and means controlled by said last mentioned means for holdingsaid detents to positively lock said elements against rotation.

5. In a. machine of the class described, a totalizer, a shield normally concealing said totalizer and normally latched against move ment, means for releasing said shield and simultaneously locking said totalizer, normally ineffective resetting means for said totalizer, and means carried by said shield for rendering said resetting means effective when the shield is in its normal position.

6. In a machine of the class described, a totalizer, a shaft for supporting said totalizer, connections between said shaft and said totalizer for resetting the latter, a counter mounted on said shaft, means for rotating said shaft to reset the totalizer, andmeans operated by the rotation of said shaft for adding a unit upon said counter.

7. In a machine of the class described, a totalizer, a shaft for supporting said totaliz'er, means for rotating said shaft, normally ineffective connections between said shaft and said totalizer for resetting the latter upon rotation of the shaft, a counter mounted upon said shaft, connections for operating said counter upon rotation of the shaft, a shield normally concealing said totalizer and said counter, and means carried by said shield for rendering said resetting connections effective.

8. In a machine of the class described, a series of printing elements, a series of spring urged detents engaging said elements, a series of plungers engaging said detents, and a shaft adapted to engage said plungers and thereby positively lock said detents against said elements.

9. In a machine of the class described, a series of totalizer elements, a series of detents adapted to engage said elements, a

series of spring urged plungers for forcing said detents against said elements, a member for controlling the printing of totals from said elements, and means controlled by said memberfor preventing movement of said detents and plungers.

10. In a machine of the class described, a

plurality of totalizer elements, a shaft forbetween said shaft and said elements for resetting the latter upon rotationof the shaft,

a counter mounted upon said shaft, connec tions for operating said counter upon rotation of the shaft, a shield normally concealing said totalizer elements and said counter, means carried by said shield for rendering said resetting connections effective, and means whereby resetting is prevented when said shield is movedout of concealing position.

11. In a machine of the class described, a series of totalizer elements, a shaft for supporting said elements, a reset counter mounted on said shaft, connections on said shaft for resetting said elements, means controlled by rotation of said shaft for adding a unit in said counter, and means for printing a total from said elements and simultaneously printing from said reset counter.

12. In a machine of the class described, a totalizer, a normally latched shield for concealing said totalizer, and means for unlatching said shield and simultaneously locking said'totalizer.

13. In a machine of the class described, a totalizer, a normally latched shield for concealing said totalizer, means for resetting said totalizer, and means for simultaneously releasing said shield and locking the totalizer against operation by said resetting means.

14. In a machine of' the class described, a totalizer, a normally latched shield for C011- cealing said totalizer, means for resetting said totalizer, means carried by said shield for controlling resetting of said totalizer, and means for simultaneously releasing said shield and locking the totalizer against operation by said resetting means.

15. In a machine of the class described, a plurality of totalizer-s, a lid normally concealing said totalizers, a latch for said lid, a member for releasing said latch, and common connections controlled by said member for locking said plurality of totalizers against operation.

16. In a machine of the class described, a plurality of totalizers, each comprising a series of denominational elements, a plurality of detents, one for each of said elements, a shield normally concealing all of said totali zers, a control member, means controlled by said member for releasing said shield, and connections from said member for positively holding all of said detents and preventing the operation of any of said elements.

17. In a machine of the class described, a. plurality of totalizers, each comprising a series of denominational elements, detents for said totahzers, one for each element,

means for controlling the printing of a total from either of said totalizers, and common means controlled by said total printing controlling means for holding said detents to positively lock all of said elements.

18. In a machine of the class described, a totalizer, differential actuators therefor, and an adjustable shield for preventing access to aeeasm said differential actuators.

19. In a machine of the class described, a

I totalizer, a plurality of actuators therefor,

and a pivotally mounted shield for preventing access to said totalizer, said shield being mounted adjacent said actuators and rockable by any one of said actuators.

20. In a machine of the class described, a totalizer, a plurality of actuators therefor, a pivotally mounted shield for preventing access to said totalizer, said shield being mounted adjacent said actuators and rockable by an one of said actuators, and a separate shield mounted upon a fixed frame member and cooperating with the first mentioned shield to prevent access to the totalizer at all positions of the movable shield.

21. In a machine of the class described, a set of type carriers; a set of rigid detent elements, one for each carrier; springs normally urging said elements into engagement with the respective carriers; a control member movable to a plurality of positions of adjustment and a common means operated by said control member when moved to one of its positions of adjustment for positively preventing disengagement of said elements from said type carriers, said control member being adapted to be locked in more than one position of adjustment.

22. In a machine of the class described, a

set of totalizer elements; a shield normally concealing said elements; latching means for said shield; a set of rigid detents, one for each totalizer element; springs normally urging said detents into engagement with the respective totalizer elements; an adjustable control member; and means whereby adjustment of said control member to a certain position unlatches said shield and simultaneously positively prevents disengagement of said detents from said totalizer elements.

23. In a machine of the class described, a set of totalizer elements, differentially movable actuators therefor, a normally latched lid, a shield carried by said lid and normally extending over said totalizer elements, and a second shield for preventing access to said totalizer elements, said second shield being operable by any one of said actuators.

24. In a machine of the class described, a set of totalizer elements, differentially movable actuators therefor, a shield for preventing access to said totalizer elements and shiftable by any one of said actuators, an additional shield for said totalizer elements, and

means normally latching the last-mentioned shield in totalizer-concealing position.

25. In a machine of the class described, a series of printing elements, a series of springurged detents engaging said elements, a series of plungers engaging said detents, a shaft rovided with a plurality of notches normaly registering with said plungers to permit movement of said elements, and means for turning said shaft to move said notches out of registering position with respect to said plungers and thereby positively lock said elements against movement.

26. In a machine of the class described, a series of printing elements, a series of detents engaging said elements, a series of movable members engaging said detents, a common member cooperating with said members provided with means for permitting movement of said members and elements, and a control member for actuating said common member to positively lock said movable members and elements against movement.

27. In a machine of the class described, a totalizer comprising a series of denominational elements, a series of detents, one for each element and urged yieldingly against the element for normally holding the latter in any position of adjustment, a control mem: ber movable to a plurality of positions of adjustment, means controlled by said member for positively holding said detents and thereby locking said elements when the control member is in one position, and means for moving said totalizer elements while the control member is at rest in a different position.

28. In a machine of the class described, a plurality of totalizer elements, a plurality of detents, means normally urging said detents yieldingly against said elements, a control member movable to a plurality of posi tions of adjustment, and means operated by said control member for positively locking said. detents against movement away from said elements, said control member being adapted to be locked in more than one position of adjustment.

29. In a machine of the class described, a

rotatable totalizer element, a detent cooperating yieldingly with said element, said detent being adapted to be rocked upon turning of said element, a slide adjacent said detent and having a recess normally in the path of movement of said detent, and locking means adapted to shift said slide longitudinally to occupy a position preventing movement of the detent.

30. In a machine of the class described, a series of rotatable printing elements, a series of spring urged detents adapted to engage said elements, said detents being rocked upon turning of said elements, a slide adjacent said detents and provided with notches normally in the paths of movement of said detents, and means for shifting said slide to carryvsaid notches out of the paths of said detents.

81. In a machine of the class described, a

printing controlling member, and means controlled by said member for shifting said slide to carry said notches out of the paths of said detents. 

